My next stop was Bouchon bakery in the Venetian Hotel. When we were in Napa, Bouchon forgot to put my salted caramel macaroon in the bag, so I decided it was worth walking 2 miles in 100° weather to procure one. I arrived to a set of closed doors, five minutes before the posted closing time (9pm). I now officially hate Thomas Keller.
So then I walked on to Payard patisserie at Caesar's Palace. It turns out they do not sell individual macaroons, but prepackaged sets of six - definitely not what I was after, either.
After watching the dancing water fountains of Bellagio, I decided to check out the Cosmopolitan. This is a new hotel and bridge nationals will be there in 2019 & 2024. I had read about a "secret pizza" place there. I followed the directions from a helpful poster on chowhound - go to the third-floor and down a on ummarked hallway with albums covers lining the walls. I was rewarded with a small pizzeria, with no seating and offering only four types of pizza. I had an excellent slice of white pizza. The crust was thin and crispy, and the ricotta was creamy and just salty enough. It was not exactly a bargain at $5.25, but extremely delicious.